# N278AS: Pilatus B4-PC11AF

- Status: Valid registration
- Airframe: [Pilatus B4-PC11AF](https://openairdocs.org/model/pilatus-b4-pc11af) (registry code 7090103, 1 seats)
- Data sheets: [TCDS G25EU](https://openairdocs.org/tcds/G25EU) (Pilatus Aircraft Limited) (OpenAirDocs)
- Serial number: 251
- Type: Glider
- Engine type: None
- Airworthiness: Standard, glider
- Airworthiness date: May 19, 1977
- Certificate issued: July 8, 2011
- Expires: July 31, 2027
- Mode S code: A2C445
- Registered owner: [Bock Bryce K](https://openairdocs.org/faa-owner/BOCK%20BRYCE%20K)
- Location: [Longwood, FL](https://openairdocs.org/faa-place/FL/Longwood)
- Owner type: Individual
- Owner's area on the map: 28.7088° N, 81.3506° W: Placed by OpenAirDocs at the center of ZIP code 32750, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=278AS
- Page: https://openairdocs.org/aircraft/N278AS

From the FAA registry file of October 24, 2026. ADs below are matched by the registry's airframe and engine model codes. They may apply; each AD's applicability can narrow it by serial number, part number or installed equipment. This is not a compliance determination.

## ADs that may apply (OpenAirDocs): 1 in force

### Matched by airframe (Pilatus B4-PC11AF)

- [AD 2005-08-07](https://openairdocs.org/ad/2005-08-07): Control-column support · Pilatus B4-PC11, B4-PC11A and B4-PC11AF. Effective Jun 2, 2005

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N278AS.

## FAA accident and incident reports

None matched to N278AS.

## Service difficulty reports

None filed for this aircraft. Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.

## STCs that may be installed (OpenAirDocs)

None matched to this aircraft's models.

## Related

- Other Pilatus B4-PC11AF aircraft: https://openairdocs.org/model/pilatus-b4-pc11af/aircraft.md

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